摘要
介绍了一种混合型径向磁悬浮轴承的结构及工作原理。该混合型径向磁悬浮轴承为同极性结构,可降低转子旋转时产生的磁滞损耗,因此转子可采用实心结构,从而可以承受更高的转速。利用等效磁路法推导了其悬浮力、控制电流及转子位移之间的函数关系,并通过有限元仿真和实验验证了其工作原理的正确性。它能够实现转子在0～10 000r/min的稳定悬浮。
The configuration and operating principle of a hybrid radial magnetic bearing are introduced. This is a homo-polar hybrid radial magnetic bearing. It can reduce hysteresis loss so that a solid rotor can be used, which can increase the endurable speed of the rotor. The functional relationships among magnetic force, control current and rotor displacement are revealed by using the theory of equivalent magnetic circuit. The operating principle is verified by finite element simulation and experiment. It can levitate the rotor of motor up to 10 000r/min.
出处
《电工技术学报》
EI
CSCD
北大核心
2009年第5期13-18,共6页
Transactions of China Electrotechnical Society
关键词
混合型
径向磁悬浮轴承
同极性
磁滞损耗
等效磁路法
有限元
Hybrid, radial magnetic bearing, homo-polar, hysteresis loss, theory of equivalent magnetic circuit, finite element
